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OEMCrypto v14 Docs

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This has the released version of the OEMCrypto API v14 documentation.

This patch also includes sample code and unit tests.
This commit is contained in:
Fred Gylys-Colwell
2018-01-23 09:29:28 -08:00
parent b124164fb8
commit 7b71a449d0
62 changed files with 20783 additions and 0 deletions
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// Copyright 2013 Google Inc. All Rights Reserved.
/*********************************************************************
* level3.h
*
* Reference APIs needed to support Widevine's crypto algorithms.
*********************************************************************/
#ifndef LEVEL3_OEMCRYPTO_H_
#define LEVEL3_OEMCRYPTO_H_
#include <stddef.h>
#include <stdint.h>
#include "level3_file_system.h"
#include "OEMCryptoCENC.h"
namespace wvoec3 {
#ifdef DYNAMIC_ADAPTER
#define Level3_IsInApp _lcc00
#define Level3_Initialize _lcc01
#define Level3_Terminate _lcc02
#define Level3_InstallKeybox _lcc03
#define Level3_GetKeyData _lcc04
#define Level3_IsKeyboxValid _lcc05
#define Level3_GetRandom _lcc06
#define Level3_GetDeviceID _lcc07
#define Level3_WrapKeybox _lcc08
#define Level3_OpenSession _lcc09
#define Level3_CloseSession _lcc10
#define Level3_DecryptCENC _lcc11
#define Level3_GenerateDerivedKeys _lcc12
#define Level3_GenerateSignature _lcc13
#define Level3_GenerateNonce _lcc14
#define Level3_RefreshKeys _lcc16
#define Level3_SelectKey _lcc17
#define Level3_RewrapDeviceRSAKey _lcc18
#define Level3_LoadDeviceRSAKey _lcc19
#define Level3_GenerateRSASignature _lcc20
#define Level3_DeriveKeysFromSessionKey _lcc21
#define Level3_APIVersion _lcc22
#define Level3_SecurityLevel _lcc23
#define Level3_Generic_Encrypt _lcc24
#define Level3_Generic_Decrypt _lcc25
#define Level3_Generic_Sign _lcc26
#define Level3_Generic_Verify _lcc27
#define Level3_GetHDCPCapability _lcc28
#define Level3_SupportsUsageTable _lcc29
#define Level3_UpdateUsageTable _lcc30
#define Level3_DeactivateUsageEntry _lcc31
#define Level3_ReportUsage _lcc32
#define Level3_DeleteUsageEntry _lcc33
#define Level3_DeleteOldUsageTable _lcc34
#define Level3_GetMaxNumberOfSessions _lcc37
#define Level3_GetNumberOfOpenSessions _lcc38
#define Level3_IsAntiRollbackHwPresent _lcc39
#define Level3_CopyBuffer _lcc40
#define Level3_QueryKeyControl _lcc41
#define Level3_LoadTestKeybox _lcc42
#define Level3_ForceDeleteUsageEntry _lcc43
#define Level3_LoadTestRSAKey _lcc45
#define Level3_SecurityPatchLevel _lcc46
#define Level3_GetProvisioningMethod _lcc49
#define Level3_GetOEMPublicCertificate _lcc50
#define Level3_RewrapDeviceRSAKey30 _lcc51
#define Level3_SupportedCertificates _lcc52
#define Level3_IsSRMUpdateSupported _lcc53
#define Level3_GetCurrentSRMVersion _lcc54
#define Level3_LoadSRM _lcc55
#define Level3_LoadKeys _lcc56
#define Level3_RemoveSRM _lcc57
#define Level3_CreateUsageTableHeader _lcc61
#define Level3_LoadUsageTableHeader _lcc62
#define Level3_CreateNewUsageEntry _lcc63
#define Level3_LoadUsageEntry _lcc64
#define Level3_UpdateUsageEntry _lcc65
#define Level3_ShrinkUsageTableHeader _lcc67
#define Level3_MoveEntry _lcc68
#define Level3_CopyOldUsageEntry _lcc69
#define Level3_CreateOldUsageEntry _lcc70
#else
#define Level3_Initialize _oecc01
#define Level3_Terminate _oecc02
#define Level3_InstallKeybox _oecc03
#define Level3_GetKeyData _oecc04
#define Level3_IsKeyboxValid _oecc05
#define Level3_GetRandom _oecc06
#define Level3_GetDeviceID _oecc07
#define Level3_WrapKeybox _oecc08
#define Level3_OpenSession _oecc09
#define Level3_CloseSession _oecc10
#define Level3_GenerateDerivedKeys _oecc12
#define Level3_GenerateSignature _oecc13
#define Level3_GenerateNonce _oecc14
#define Level3_RefreshKeys _oecc16
#define Level3_SelectKey _oecc17
#define Level3_RewrapDeviceRSAKey _oecc18
#define Level3_LoadDeviceRSAKey _oecc19
#define Level3_DeriveKeysFromSessionKey _oecc21
#define Level3_APIVersion _oecc22
#define Level3_SecurityLevel _oecc23
#define Level3_Generic_Encrypt _oecc24
#define Level3_Generic_Decrypt _oecc25
#define Level3_Generic_Sign _oecc26
#define Level3_Generic_Verify _oecc27
#define Level3_SupportsUsageTable _oecc29
#define Level3_UpdateUsageTable _oecc30
#define Level3_ReportUsage _oecc32
#define Level3_DeleteUsageEntry _oecc33
#define Level3_DeleteOldUsageTable _oecc34
#define Level3_GenerateRSASignature _oecc36
#define Level3_GetMaxNumberOfSessions _oecc37
#define Level3_GetNumberOfOpenSessions _oecc38
#define Level3_IsAntiRollbackHwPresent _oecc39
#define Level3_CopyBuffer _oecc40
#define Level3_QueryKeyControl _oecc41
#define Level3_LoadTestKeybox _oecc42
#define Level3_ForceDeleteUsageEntry _oecc43
#define Level3_GetHDCPCapability _oecc44
#define Level3_LoadTestRSAKey _oecc45
#define Level3_SecurityPatchLevel _oecc46
#define Level3_DecryptCENC _oecc48
#define Level3_GetProvisioningMethod _oecc49
#define Level3_GetOEMPublicCertificate _oecc50
#define Level3_RewrapDeviceRSAKey30 _oecc51
#define Level3_SupportedCertificates _oecc52
#define Level3_IsSRMUpdateSupported _oecc53
#define Level3_GetCurrentSRMVersion _oecc54
#define Level3_LoadSRM _oecc55
#define Level3_LoadKeys _oecc56
#define Level3_RemoveSRM _oecc57
#define Level3_CreateUsageTableHeader _oecc61
#define Level3_LoadUsageTableHeader _oecc62
#define Level3_CreateNewUsageEntry _oecc63
#define Level3_LoadUsageEntry _oecc64
#define Level3_UpdateUsageEntry _oecc65
#define Level3_DeactivateUsageEntry _oecc66
#define Level3_ShrinkUsageTableHeader _oecc67
#define Level3_MoveEntry _oecc68
#define Level3_CopyOldUsageEntry _oecc69
#define Level3_CreateOldUsageEntry _oecc70
#endif
#define Level3_GetInitializationState _oecl3o01
extern "C" {
bool Level3_IsInApp();
OEMCryptoResult Level3_Initialize(void);
OEMCryptoResult Level3_Terminate(void);
OEMCryptoResult Level3_OpenSession(OEMCrypto_SESSION *session);
OEMCryptoResult Level3_CloseSession(OEMCrypto_SESSION session);
OEMCryptoResult Level3_GenerateDerivedKeys(OEMCrypto_SESSION session,
const uint8_t *mac_key_context,
uint32_t mac_key_context_length,
const uint8_t *enc_key_context,
uint32_t enc_key_context_length);
OEMCryptoResult Level3_GenerateNonce(OEMCrypto_SESSION session,
uint32_t* nonce);
OEMCryptoResult Level3_GenerateSignature(OEMCrypto_SESSION session,
const uint8_t* message,
size_t message_length,
uint8_t* signature,
size_t* signature_length);
OEMCryptoResult Level3_LoadKeys(
OEMCrypto_SESSION session, const uint8_t* message, size_t message_length,
const uint8_t* signature, size_t signature_length,
const uint8_t* enc_mac_keys_iv, const uint8_t* enc_mac_keys,
size_t num_keys, const OEMCrypto_KeyObject* key_array, const uint8_t* pst,
size_t pst_length, const uint8_t* srm_requirement);
OEMCryptoResult Level3_RefreshKeys(OEMCrypto_SESSION session,
const uint8_t* message,
size_t message_length,
const uint8_t* signature,
size_t signature_length,
size_t num_keys,
const OEMCrypto_KeyRefreshObject* key_array);
OEMCryptoResult Level3_QueryKeyControl(OEMCrypto_SESSION session,
const uint8_t* key_id,
size_t key_id_length,
uint8_t* key_control_block,
size_t* key_control_block_length);
OEMCryptoResult Level3_SelectKey(const OEMCrypto_SESSION session,
const uint8_t* key_id,
size_t key_id_length);
OEMCryptoResult Level3_DecryptCENC(OEMCrypto_SESSION session,
const uint8_t *data_addr,
size_t data_length,
bool is_encrypted,
const uint8_t *iv,
size_t block_offset,
OEMCrypto_DestBufferDesc* out_buffer,
const OEMCrypto_CENCEncryptPatternDesc* pattern,
uint8_t subsample_flags);
OEMCryptoResult Level3_CopyBuffer(const uint8_t *data_addr,
size_t data_length,
OEMCrypto_DestBufferDesc* out_buffer,
uint8_t subsample_flags);
OEMCryptoResult Level3_WrapKeybox(const uint8_t *keybox,
size_t keyBoxLength,
uint8_t *wrappedKeybox,
size_t *wrappedKeyBoxLength,
const uint8_t *transportKey,
size_t transportKeyLength);
OEMCryptoResult Level3_InstallKeybox(const uint8_t *keybox,
size_t keyBoxLength);
OEMCrypto_ProvisioningMethod Level3_GetProvisioningMethod();
OEMCryptoResult Level3_GetOEMPublicCertificate(OEMCrypto_SESSION session,
uint8_t *public_cert,
size_t *public_cert_length);
OEMCryptoResult Level3_LoadTestKeybox();
OEMCryptoResult Level3_IsKeyboxValid(void);
OEMCryptoResult Level3_GetDeviceID(uint8_t* deviceID,
size_t *idLength);
OEMCryptoResult Level3_GetKeyData(uint8_t* keyData,
size_t *keyDataLength);
OEMCryptoResult Level3_GetRandom(uint8_t* randomData,
size_t dataLength);
OEMCryptoResult Level3_RewrapDeviceRSAKey30(OEMCrypto_SESSION session,
const uint32_t *nonce,
const uint8_t* encrypted_message_key,
size_t encrypted_message_key_length,
const uint8_t* enc_rsa_key,
size_t enc_rsa_key_length,
const uint8_t* enc_rsa_key_iv,
uint8_t* wrapped_rsa_key,
size_t* wrapped_rsa_key_length);
OEMCryptoResult Level3_RewrapDeviceRSAKey(OEMCrypto_SESSION session,
const uint8_t* message,
size_t message_length,
const uint8_t* signature,
size_t signature_length,
const uint32_t *nonce,
const uint8_t* enc_rsa_key,
size_t enc_rsa_key_length,
const uint8_t* enc_rsa_key_iv,
uint8_t* wrapped_rsa_key,
size_t *wrapped_rsa_key_length);
OEMCryptoResult Level3_LoadDeviceRSAKey(OEMCrypto_SESSION session,
const uint8_t* wrapped_rsa_key,
size_t wrapped_rsa_key_length);
OEMCryptoResult Level3_LoadTestRSAKey();
OEMCryptoResult Level3_GenerateRSASignature(OEMCrypto_SESSION session,
const uint8_t* message,
size_t message_length,
uint8_t* signature,
size_t *signature_length,
RSA_Padding_Scheme padding_scheme);
OEMCryptoResult Level3_DeriveKeysFromSessionKey(OEMCrypto_SESSION session,
const uint8_t* enc_session_key,
size_t enc_session_key_length,
const uint8_t *mac_key_context,
size_t mac_key_context_length,
const uint8_t *enc_key_context,
size_t enc_key_context_length);
uint32_t Level3_APIVersion();
uint8_t Level3_SecurityPatchLevel();
const char* Level3_SecurityLevel();
OEMCryptoResult Level3_GetHDCPCapability(OEMCrypto_HDCP_Capability* current,
OEMCrypto_HDCP_Capability* maximum);
bool Level3_SupportsUsageTable();
bool Level3_IsAntiRollbackHwPresent();
OEMCryptoResult Level3_GetNumberOfOpenSessions(size_t* count);
OEMCryptoResult Level3_GetMaxNumberOfSessions(size_t* maximum);
uint32_t Level3_SupportedCertificates();
OEMCryptoResult Level3_Generic_Encrypt(OEMCrypto_SESSION session,
const uint8_t* in_buffer,
size_t buffer_length,
const uint8_t* iv,
OEMCrypto_Algorithm algorithm,
uint8_t* out_buffer);
OEMCryptoResult Level3_Generic_Decrypt(OEMCrypto_SESSION session,
const uint8_t* in_buffer,
size_t buffer_length,
const uint8_t* iv,
OEMCrypto_Algorithm algorithm,
uint8_t* out_buffer);
OEMCryptoResult Level3_Generic_Sign(OEMCrypto_SESSION session,
const uint8_t* in_buffer,
size_t buffer_length,
OEMCrypto_Algorithm algorithm,
uint8_t* signature,
size_t* signature_length);
OEMCryptoResult Level3_Generic_Verify(OEMCrypto_SESSION session,
const uint8_t* in_buffer,
size_t buffer_length,
OEMCrypto_Algorithm algorithm,
const uint8_t* signature,
size_t signature_length);
OEMCryptoResult Level3_UpdateUsageTable();
OEMCryptoResult Level3_DeactivateUsageEntry(OEMCrypto_SESSION session,
const uint8_t *pst,
size_t pst_length);
OEMCryptoResult Level3_ReportUsage(OEMCrypto_SESSION session,
const uint8_t *pst,
size_t pst_length,
uint8_t *buffer,
size_t *buffer_length);
OEMCryptoResult Level3_DeleteUsageEntry(OEMCrypto_SESSION session,
const uint8_t* pst,
size_t pst_length,
const uint8_t *message,
size_t message_length,
const uint8_t *signature,
size_t signature_length);
OEMCryptoResult Level3_ForceDeleteUsageEntry(const uint8_t* pst,
size_t pst_length);
OEMCryptoResult Level3_DeleteOldUsageTable();
bool Level3_IsSRMUpdateSupported();
OEMCryptoResult Level3_GetCurrentSRMVersion(uint16_t* version);
OEMCryptoResult Level3_LoadSRM(const uint8_t* buffer,
size_t buffer_length);
OEMCryptoResult Level3_RemoveSRM();
uint32_t Level3_SupportsDecryptHash();
OEMCryptoResult Level3_SetDecryptHash(OEMCrypto_SESSION session,
const uint8_t* hash,
size_t hash_length);
OEMCryptoResult Level3_VerifyDecryptHash(OEMCrypto_SESSION session,
uint64_t* failure_data);
OEMCryptoResult Level3_CreateUsageTableHeader(uint8_t* header_buffer,
size_t* header_buffer_length);
OEMCryptoResult Level3_LoadUsageTableHeader(const uint8_t* buffer,
size_t buffer_length);
OEMCryptoResult Level3_CreateNewUsageEntry(OEMCrypto_SESSION session,
uint32_t *usage_entry_number);
OEMCryptoResult Level3_LoadUsageEntry(OEMCrypto_SESSION session,
uint32_t index,
const uint8_t *buffer,
size_t buffer_size);
OEMCryptoResult Level3_UpdateUsageEntry(OEMCrypto_SESSION session,
uint8_t* header_buffer,
size_t* header_buffer_length,
uint8_t* entry_buffer,
size_t* entry_buffer_length);
OEMCryptoResult Level3_ShrinkUsageTableHeader(uint32_t new_table_size,
uint8_t* header_buffer,
size_t* header_buffer_length);
OEMCryptoResult Level3_MoveEntry(OEMCrypto_SESSION session,
uint32_t new_index);
OEMCryptoResult Level3_CopyOldUsageEntry(OEMCrypto_SESSION session,
const uint8_t*pst,
size_t pst_length);
OEMCryptoResult Level3_CreateOldUsageEntry(uint64_t time_since_license_received,
uint64_t time_since_first_decrypt,
uint64_t time_since_last_decrypt,
OEMCrypto_Usage_Entry_Status status,
uint8_t *server_mac_key,
uint8_t *client_mac_key,
const uint8_t* pst,
size_t pst_length);
/*
* Level3_GetInitializationState
*
* Description:
* Return any warning or error condition which occurred during
* initialization. On some platforms, this value will be logged and metrics
* will be gathered on production devices. This is an optional feature, and
* OEMCrypto may always return 0, even if Level3_Initialize failed. This
* function may be called whether Level3_Initialize succeeded or not.
*
* Parameters:
* N/A
*
* Threading:
* No other function calls will be made while this function is running.
*
* Returns:
* 0 - no warnings or errors during initialization
*
* Version:
* This method is new in API version 14.
*/
OEMCryptoResult Level3_GetInitializationState(void);
} // extern "C"
// The following are interfaces needed for Level3 OEMCrypto specifically, which
// partners are expected to implement.
// Returns a stable, unique identifier for the device. This could be a
// serial number or any other character sequence representing that device.
// The parameter |len| needs to be changed to reflect the length of the
// unique identifier.
const char *getUniqueID(size_t *len);
// Returns a 64-bit unsigned integer to be used as a random seed for RNG.
// If the operation is unsuccessful, this function returns 0.
// We provide a sample implementation under the name generate_entropy_linux.cpp
// which partners should use if they can.
uint64_t generate_entropy();
// Creates and returns an OEMCrypto_Level3FileSystem implementation.
OEMCrypto_Level3FileSystem* createLevel3FileSystem();
// Deletes the pointer retrieved by the function above.
void deleteLevel3FileSystem(OEMCrypto_Level3FileSystem* file_system);
} // namespace wvoec3
#endif // LEVEL3_OEMCRYPTO_H_

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// Copyright 2017 Google Inc. All Rights Reserved
/*********************************************************************
* level3_file_system.h
*
* File system for OEMCrypto Level3 file operations.
*********************************************************************/
#ifndef LEVEL3_FILE_SYSTEM_H_
#define LEVEL3_FILE_SYSTEM_H_
#include <stdlib.h>
namespace wvoec3 {
class OEMCrypto_Level3FileSystem {
public:
virtual ~OEMCrypto_Level3FileSystem() {}
virtual ssize_t Read(const char *filename, void *buffer, size_t size) = 0;
virtual ssize_t Write(const char *filename, const void *buffer,
size_t size) = 0;
virtual bool Exists(const char *filename) = 0;
virtual ssize_t FileSize(const char *filename) = 0;
virtual bool Remove(const char *filename) = 0;
};
} // namespace wvoec3
#endif

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// Copyright 2014 Google Inc. All Rights Reserved.
#ifndef WVOEC_OEMCRYPTO_LOGGING_H_
#define WVOEC_OEMCRYPTO_LOGGING_H_
#include <iostream>
#include <string>
#include "OEMCryptoCENC.h"
#include "log.h"
namespace wvoec_mock {
// The constants below represent integers with a single "on" bit that
// represents categories of logging This allows users to specify with
// more precision what they want to log. LogCategoryEnabled(category)
// is used to see if the category passed in the parameters is to
// be logged based on the current settings. Categories can be combines
// using the | (or) bitwise operator. For example
// LogCategoryEnabled(category1 | category2) will return true if
// category1 and/or category2 are set to logging.
const int kLoggingTraceOEMCryptoCalls = 0x01; // All except decrypt calls.
const int kLoggingDumpContentKeys = 0x02;
const int kLoggingDumpKeyControlBlocks = 0x04;
const int kLoggingDumpDerivedKeys = 0x08;
const int kLoggingTraceNonce = 0x10;
const int kLoggingTraceDecryption = 0x20;
const int kLoggingTraceUsageTable = 0x40;
const int kLoggingTraceDecryptCalls = 0x80;
const int kLoggingDumpTraceAll = 0xFF;
void SetLoggingSettings(int level, int categories);
// set level of logging
void SetLoggingLevel(int level);
void TurnOffLoggingForAllCategories();
// Returns true if the category passed is set to logging.
// Returns false otherwise. The category constant declared
// above are passed.
bool LogCategoryEnabled(int category);
// Turn on logging for the categories passed.
void AddLoggingForCategories(int categories);
// Turn off logging for the categories passed.
void RemoveLoggingForCategories(int categories);
void dump_hex_helper(std::string& buffer, std::string name,
const uint8_t* vector, size_t length);
void dump_hex(std::string name, const uint8_t* vector, size_t length);
void dump_array_part_helper(std::string& buffer, std::string array,
size_t index, std::string name,
const uint8_t* vector, size_t length);
void dump_array_part(std::string array, size_t index, std::string name,
const uint8_t* vector, size_t length);
} // namespace wvoec_mock
#endif

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// Copyright 2017 Google Inc. All Rights Reserved.
/*********************************************************************
* pst_report.h
*
* Reference APIs needed to support Widevine's crypto algorithms.
*********************************************************************/
#ifndef PST_REPORT_H_
#define PST_REPORT_H_
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include "OEMCryptoCENC.h"
#include "string_conversions.h" // needed for htonll64.
namespace wvcdm {
class Unpacked_PST_Report {
public:
// This object does not own the buffer, and does not check that buffer
// is not null.
Unpacked_PST_Report(uint8_t *buffer) : buffer_(buffer) {}
// Copy and move semantics of this class is like that of a pointer.
Unpacked_PST_Report(const Unpacked_PST_Report& other) :
buffer_(other.buffer_) {}
Unpacked_PST_Report& operator=(const Unpacked_PST_Report& other) {
buffer_ = other.buffer_;
return *this;
}
size_t report_size() const {
return pst_length() + kraw_pst_report_size;
}
static size_t report_size(size_t pst_length) {
return pst_length + kraw_pst_report_size;
}
uint8_t status() const {
return static_cast<uint8_t>(* (buffer_ + kstatus_offset));
}
void set_status(uint8_t value) {
buffer_[kstatus_offset] = value;
}
uint8_t* signature() {
return buffer_ + ksignature_offset;
}
uint8_t clock_security_level() const {
return static_cast<uint8_t>(* (buffer_ + kclock_security_level_offset));
}
void set_clock_security_level(uint8_t value) {
buffer_[kclock_security_level_offset] = value;
}
uint8_t pst_length() const {
return static_cast<uint8_t>(* (buffer_ + kpst_length_offset));
}
void set_pst_length(uint8_t value) {
buffer_[kpst_length_offset] = value;
}
uint8_t padding() const {
return static_cast<uint8_t>(* (buffer_ + kpadding_offset));
}
void set_padding(uint8_t value) {
buffer_[kpadding_offset] = value;
}
// In host byte order.
int64_t seconds_since_license_received() const {
int64_t time;
memcpy(&time, buffer_ + kseconds_since_license_received_offset,
sizeof(int64_t));
return wvcdm::ntohll64(time);
}
// Parameter time is in host byte order.
void set_seconds_since_license_received(int64_t time) const {
time = wvcdm::ntohll64(time);
memcpy(buffer_ + kseconds_since_license_received_offset, &time,
sizeof(int64_t));
}
// In host byte order.
int64_t seconds_since_first_decrypt() const {
int64_t time;
memcpy(&time, buffer_ + kseconds_since_first_decrypt_offset,
sizeof(int64_t));
return wvcdm::ntohll64(time);
}
// Parameter time is in host byte order.
void set_seconds_since_first_decrypt(int64_t time) const {
time = wvcdm::ntohll64(time);
memcpy(buffer_ + kseconds_since_first_decrypt_offset, &time,
sizeof(int64_t));
}
// In host byte order.
int64_t seconds_since_last_decrypt() const {
int64_t time;
memcpy(&time, buffer_ + kseconds_since_last_decrypt_offset,
sizeof(int64_t));
return wvcdm::ntohll64(time);
}
// Parameter time is in host byte order.
void set_seconds_since_last_decrypt(int64_t time) const {
time = wvcdm::ntohll64(time);
memcpy(buffer_ + kseconds_since_last_decrypt_offset, &time,
sizeof(int64_t));
}
uint8_t* pst() {
return (buffer_ + kpst_offset);
}
private:
uint8_t *buffer_;
// Size of the PST_Report without the pst string.
static const size_t kraw_pst_report_size = 48;
static const size_t ksignature_offset = 0;
static const size_t kstatus_offset = 20;
static const size_t kclock_security_level_offset = 21;
static const size_t kpst_length_offset = 22;
static const size_t kpadding_offset = 23;
static const size_t kseconds_since_license_received_offset = 24;
static const size_t kseconds_since_first_decrypt_offset = 32;
static const size_t kseconds_since_last_decrypt_offset = 40;
static const size_t kpst_offset = 48;
};
} // namespace wvcdm
#endif // PST_REPORT_H_